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Questions tagged [obd-ii]

OBD-II is an automotive term referring to the diagnostic system of a car. The OBD-II specification includes standardized hardware and message protocols. With an OBD-II connector, it's possible to read the diagnostic data from the car, e.g., vehicle speed, RPM, mileage, airflow.

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OBD2 Mazda 3 Car Doors Codes

I have Mazda 3 (2005). I read a while ago that i can use ELM327 (OBD2) to do stuff like: Lock & Unlock my cars doors Check whether my car doors are locked Check A/C Temperature ( I don't have the stereo screen anymore ) Check A/C Level ( I don't…
Sagi Avisar
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Swift - BLE command execution in Background mode in iOS

I want to continuously communicate with BLE device in in one of the my iOS application. Is it possible? How can i achieve this? Thanks,
Sam007
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android bluetooth obd2 application development

I want to create an Android application to connect to the car through bluetooth, using an EML327 device (OBD2). I am very new to this area, and I've searched information, but I don't know how to start and what I need for this. I've installed Android…
Chris
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CAN diagnostics

I have to develop a smartphone application which will communicate with a car diagnostic tool. Generally, the protocols used in the diagnostic are KWP2000, UDS and OBD. My question is " how to communicate with the car ? and how to work with these…
Andromida
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Requesting, reading and displaying data from OBD-II port via ELM327 in react| ELM327 bluetooth commands

I am working on my school project - an infotainment system, and I want to read data from the OBD-II port, using ELM over Bluetooth and display it in React. However, to get any information, you need to send a command. Does anybody know what are the…
futyseq
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How can I talk only to one ECU in a two ECU Car with ELM237 and OBDII

I am sending following ELM237 commands to a Porsche Cayenne. There are two ECU on the Bus 7E9 and 7E8. I would like to address only one at a time. I thought I can do that by using atsh7E8 to talk only to one but then the answers contain only the…
Ride Sun
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Android hexadecimal to decimal conversion

I need some help in converting the answers I get from my OBD adapter in my car to decimal and then later adding whatever value comes out of the conversion to a formula and printed out. public void run() { OBDcmds(); try { …
swess
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making OBD-II reader using STM32F3

i start making my own obd2 reader with stm32f303k8 and MCP2551 transciever CAN BUS . For that i start with CubeMX for configuration and Keil using Hal functions but i still trying to get data from car.. until i found stm32f10x code who remplace…
JcompteStack
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